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    Comparing avian species richness estimates from structured and semi-structured citizen science data

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    Synapsid tracks with skin impressions illuminate the terrestrial tetrapod diversity in the earliest Permian of equatorial Pangea

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    Unspoilt forests fall to feed the global supply chain

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    Agricultural expansion can plunder forests, but it is not the only human activity to do so. Researchers have found that more than one-third of the loss of Earth’s large, intact forests is driven by production for export — especially of wood, minerals and energy1.

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    Significant changes in soil microbial community structure and metabolic function after Mikania micrantha invasion

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